baber/WOPTO huggingface dataset:
Patent DE-4114269-A1 (DE)
Title: Mfg. microstructures locked on mask for X=ray lithography - using plasma etching to separate microstructures from titanium@ supporting membrane
Inventor: SCHOMBURG WERNER DR
IPC: G03F7/00
Filed: 1991-05-02
Abstract: A number of 28 micron high microstructures (1) is arranged on a 3 micron titanium membrane (3) stretched over a frame (2). The membrane is then coated with a 11 micron photosensitive layer (4) and covered with a chromium-glass mask that has 10-100 micron wide chrome-free strips. Using a microscope, the chromium-glass mask is aligned so that the chrome-free strips adjoin the edges of the underlying microstructures, and the assembly is exposed and developed to obtain a series 10-100 micron wide strips (4a) in the photosensitive layer. The resultant structure is positioned over a precise thickness underlying layer (7), placed in a plasma etching chamber containing tetrafluoromethane and subjected to a h.f. alternating electric field so that the microstructures become detached from the remainder of the titanium membrane and drop onto the underluing layer. The remainder of the photosensitive layer is then removed in the etching chamber using oxygen and a reduced power electric field. ADVANTAGE - Individual microstructures do not require separating, enabling separate microstructures to be used.
Patent DE-4116836-A1 (DE)
Title: Vehicle seat which automatically massages occupants body - has ball-shaped massage element rotated by motor-driven endless belts
Inventor: BALL WILFRIED
IPC: B60N2/90
Filed: 1991-05-23
Abstract: The vehicle seat with a massage facility (7) consists of several strips (8a-f, 9a-c, 10a, b, 18) which each constitute a unit (8, 9, 10) for the massage of given parts of the seat occupant's body. An individual module has ball shaped massage elements (11, 12) which can be rotated in either direction by a motor driven endless belt (21). The massage pressure can be varied by altering the pressure plates (29a, b, c). ADVANTAGE - Seat with a mechanism which automatically provides an adjustable massaging effect.
Patent DE-4118935-A1 (DE)
Inventor: MAYER ROLF DIPL ING
IPC: H01R4/02
Filed: 1991-06-08
Abstract: The aim of the invention is to produce a mechanically and electrically secure solder bond between a contact pin and a solder eyelet on a conductor track sheet. With respect to its end (29), the contact pin (14) has a reduced section, in the form of a constriction (32) for instance, in which lodge sheet sections (28) which protrude out from the plane of the conductor track sheet (18) and which are formed when the contact pin pierces the initially virgin solder eyelet (23). The solder (25) connects the conducting film (21) of the solder eyelet (23) and sheet sections (28) with the contact pin (14).
Patent DE-4119827-A1 (DE)
Title: Bobbin change mechanism for monofilament or tape yarns - brings new bobbin up to speed and winds yarn on to it before cutting off full bobbin
Inventor: HINTERKEUSER HANS DIPL ING
IPC: B65H67/04
Filed: 1991-06-15
Abstract: An automatic bobbin changer for winding mono or multifilament yarn or tape has a driven bobbin/traverse unit (2) which can be temporarily coupled to the bobbin drive shaft (4) of the winder (6). A yarn diverting arm (9) takes the yarn (10) from the full bobbin (13) to the rotating empty bobbin (8). The bobbin/traverse unit (2) can be arranged to accept and transfer the empty (8) and full (13) bobbins with a gripping mechanism (7). USE/ADVANTAGE - The invention is partic. suitable for stiff monofilament or tape which is not easily entrained on an empty bobbin.
Patent DE-4120861-A1 (DE)
Title: Control distance measurement appts. e.g. for angle sensor in vehicle engine - has 3 short circuit ring sensors in common unit and connected to evaluation unit which determines coil inductance ratios
Inventor: WIESE PETER
IPC: G01D5/22
Filed: 1991-06-25
Abstract: The appts. includes short circuit ring sensor (2) with a movable ring on a core and a measurement coil and a reference sensor (4) with a fixed ring. The two sensors are mounted on in a unit with the same ambient conditions. An evaluation unit determines the ratio of the measurement and reference coil inductances. A further short circuit ring sensor (3) in the unit and connected to the evaluation unit has a ring (12) movable independently of that in the first sensor. The evaluation unit also measures the ratio of the inductances of the coils in the first and additional sensors. USE/ADVANTAGE - Allows compact mounting in vehicle or aircraft.
Patent DE-4120869-A1 (DE)
Title: Finned tube vehicle radiator - has tube openings in end plates widened to also secure side section lugs
Inventor: DAMSOHN HERBERT DIPL ING DR
IPC: F28F9/00
Filed: 1991-06-25
Abstract: The automotive-engine radiator, comprises a finned-tube block whose tubes are secured in end plate openings, by soldering,. Cooling ribs between the tubes are enclosed between side-sections joined to the end plates and with end lugs inserted in the plates. The openings (5) in the end plates (1) adjacent to the side-sections (2) have a cross-section increased by the amount of the lug thickness. The lugs (8) are secured in them together with the tubes (3). The latter can be flat, while the lugs can be parallel to the side-section side surfaces. ADVANTAGE - Simplicity, with side-sections secured firmly in place.
Patent DE-4121895-A1 (DE)
Title: Remote computer operating device using bar-code facsimile -  incorporates laser scanner for continuous monitoring of telefax print-out producing bar codes or OCR-decodable signals
Inventor: VILSECKER SIEGFRIED
IPC: H04M11/00
Filed: 1991-07-02
Abstract: The markings (3) on the printout (2) from the telefax receiver (1) are scanned (4) by a bar-code reader and OCR scanner (6) which sends a pulse train (5) to a decoder (7). This produces a serial data stream or keyboard code (8) for input (9) to the computer (10). Advantageously an additional telefax card (11) with an automatic selector and modem within the computer (10) transfers the selected information into the telephone network (12) from which the original message was conveyed to the telefax receiver (1). ADVANTAGE - Central computing installations can be accessed by unskilled operators to min. cost in time and labour.
Patent DE-4124318-A1 (DE)
Inventor: SCHOLL HANS JOACHIM DR
IPC: C07C263/20
Filed: 1991-07-23
Abstract: A process for the purification of organic polyisocyanates by mixing the polyisocyanates with compounds having 0.001 to 1% by weight of trimethylsilyl groups at 20 to 150 DEG C, and, if appropriate, followed by degasification or work-up by distillation, the polyisocyanates which have been purified in this manner, and their use for the preparation of polyurethane plastics, in particular foamed polyurethane plastics.
Patent DE-4126069-A1 (DE)
Title: Rolling process for steel rod and bars in rolling mills - in which rolling strand passes twice through first rolling sections consisting of rolling sections and blocks
Inventor: EVERS RUDOLF
IPC: B21B15/00
Filed: 1991-08-02
Abstract: In a rolling process for steel rod and bars in smaller capacity rolling mills and using heavy starting billets, the rolling strands is passed twice through the first rolling section of a rolling mill consisting of continuous rolling sections and blocks. After the first pass, the strand is returned via thermally insulated channels (7) with the aid of drivers (8) and is reheated in furnace (1) prior to its second pass through the first rolling section (4). USE/ADVANTAGE - Used in steel rod and bar mills and enables heavy starting billets to be used for rolling mills of smaller output, saving the use of one reheat furnace and one rolling section and shear.
Patent DE-4131248-A1 (DE)
Title: Testing terminal communicating with chip cards - using secret key and code algorithm stored in chip card and in terminal security module
Inventor: KRUSE DIETRICH
IPC: G07F7/10
Filed: 1991-09-19
Abstract: From the key and the code algorithm, dependent upon the number of coincidences generated in the chip card and in the security module of the terminal and alternatively also transmitted to the other partner, an authorisation parameter is formed and for test purposes is transmitted to the other partner, where a comparison of the two authorisation parameters out of the same number of coincidences is carried out. Starting from a first comparison in the chip card of a first authorisation parameter dependent upon a coincidence count (V2) generated in the terminal second authorisation parameters (AP2, AP2') are formed. The second authorisation parameter (AP2) formed in the chip card is transmitted to the terminal dependent upon the a positive comparison result arising from the first comparison. This gives rise to the prodn. of an optical and/or acoustic test signal (AS). USE/ADVANTAGE - Test procedure for terminal communicating with chip cards, in which user of card can ascertain whether terminal is working unmanipulatedly.
Patent DE-4131577-A1 (DE)
Title: Disposable non-thixotropic metal hydroxide prodn. - from cyclone dust in titanium di:oxide mfr. by filtering acidic paste and oxidn. using before neutralising
Inventor: SCHINKITZ DIETER DR
IPC: A62D101/43
Filed: 1991-09-23
Abstract: Prodn. of disposable material (I) by working up metal chlorides (II), which are obtd. as cyclone dust (III) in TiO2 mfr. by the chloride process, involves (a) making (III) into a paste with water and/or an acid so that (II) dissolve; (b) sepg. the inert components (IV) of (III) from the suspension in the first sepn. stage; (c) selective pptn. of the metals as metal hydroxide (V) by increasing the pH of the filtrate (VI) in stages to a value less than 12; and (d) working up (V) to (I) in a second sepn. stage. Selective pptn. is carried out in such a way that the pH of (VI) first exceeds 5.0 only after addn. of an oxidant (VII) in the pH range 4.2-5. ADVANTAGE - The amt. of filter cake is reduced considerably, since (IV) are not needed to produce (I) but can be used in other chemical processes. In spite of this, the filter cake is not thixotropicing
Patent DE-4132004-A1 (DE)
Inventor: PEHL HERMANN-JOSEF DIPL ING
IPC: G11B20/22
Filed: 1991-09-26
Abstract: A magnetic tape apparatus for recording data signals is proposed, in which the data signal is first of all converted in a coding device (19, 20) into a ternary signal (x'(t)) and then is passed via the stator winding and rotor winding of an inductive transforming device (11, 12, 13) to a rectifier stage (21), arranged on the rotor side of the transforming device (11, 12, 13). A d.c. voltage (Vth) is added to the signal (y'(t)) which can be picked up at the output of the rectifier stage (21) before it is recorded by a recording magnetic head (9) onto a magnetic tape (3). 
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Patent DE-4133361-A1 (DE)
Title: Device for removing skin from pig meat and/or carcasses - consists of reciprocating knife, rotating traction drum and drive unit combined in hand-held housing, de-skin suspended carcasses in strips
Inventor: GUGG ANTON
IPC: A22C17/12
Filed: 1991-10-09
Abstract: Novel di-skinning device has a skinning knife, a counter surface, and a knife drive unit. The distance between the knife and the counter surface corresponds to the skin thickness. The knife and drive unit make up a hand-held de-skinning device which has a housing and at least one handle attached to the housing or to its support frame. The knife is approximately horizontal and at right angles to the operator position defined by the location of the handles. The device is designed for de-skinning whole or half pig carcasses in strips before they are cut up, partic. when in a hanging position, and is moved by hand along the outside of the carcass so that the knife separates the wide surfaec of a strip of skin from the carcass. USE/ADVANTAGE - For removing the skin from pig carcasses. The de-skinning operation requires less floor space and becomes much less dangerous and laborious. The carcass is de-skinned while it is still in one or two large pieces, simplifying subsequent processing.
Patent DE-4134628-A1 (DE)
Title: Connector for superposed areas of flat material - uses punched out tongues to hook through smaller apertures to engage without extra fasteners
Inventor: LUETTERS RAINER
IPC: B65D75/36
Filed: 1991-10-19
Abstract: One of the flat material pieces has apertures whilst the other flat material piece has flap-like tongues which widen out in size relative to the apertures. The tongues of one material are forced through the apertures in the other until they engage behind same. The apertures and tongues can be punched out. The flat material pieces (12, 13) are made from cardboard and/or bending resistant plastics. The tongues (21) can have a bulging or convex shape whilst the holes (20) can be suitable shaped slightly smaller. ADVANTAGE - Connecting areas are formed without adhesive or staples so that the resulting packaging is particularly suitable for recycling.
Patent DE-4141686-A1 (DE)
Title: Ski with top and bottom stringers - has core between stringers with side plates, edges and transparent lacquer coating layer
Inventor: ROHRMOSER ALOIS
IPC: A63C5/04
Filed: 1991-12-18
Abstract: The ski (1) has an upper and lower stringer (13, 14) consisting of several layers; between the upper and lower stringers (13, 14) is a core (10) with side-plates (4), side-edges (3), a tread-coating (6) and a covering-layer of lacque (5). At least one support-stringer (11, 12) next to the top or tread surface is transparent and is joined to a design layer (15, 16; 25) on its contact surface facing the ski-core (10). The transparent support stringer (12) is positioned between the tread surface coating (6) and the lower stringer`s (14) other layers. The design layer is joined by a transparent adhesive layer (17, 18, 23) to the support stringer (11, 12, 19) which has a reinforcement layer (20). ADVANTAGE - The strong ski incorporates less reinforcement material and has a design layer.
Patent DE-4203729-A1 (DE)
Title: Mechanical amplitude-amplifier for high amplification of ultrasonic vibrations - has graded conical vibrator shape with reflection surface area larger than cross-section in the middle region
Inventor: HIELSCHER HARALD DR ING
IPC: B06B3/02
Filed: 1992-02-06
Abstract: The mechanical amplitude-amplifier of ultrasonic vibrations has a lambda/2 graded cylindrical vibrator. In its conical region, the cross-section (1) is smaller by lambda/4 than the size of the reflection area (2). The cross-section of the lower part (6) decreases in the middle portion of the vibrator. A hole (4) is made so that the cross-section (1) decreases within the graded region of the amplitude-amplifier. The length of the hole should be more than half the lower part (6) of the vibrator. USE/ADVANTAGE - Smaller mass and less material used in the ultrasonic vibrator.
Patent DE-4208402-A1 (DE)
Title: New polysiloxane block copolymers - useful as stationary phase for gas or liq. chromatography or electrophoresis, and for modifying glass or quartz surfaces
Inventor: FRANK HARTMUT DR
IPC: C08G77/44
Filed: 1992-03-16
Abstract: C-functional polysiloxane block copolymers based on repeating units of formula (I) are claimed. In (I), R = -CH2- or -CHR2-CHR3- (with R2, R3 = H or Me); R1 = alkyl, aryl or aralkyl; if n = 0, then X, Y = H; if n = more than 0, X, Y = NCO, NCS, CN, F, Cl, Br, I, COOCH2CF3, COOCH(CF3)2, COO(CF3)3, COOCH2CyF2y+1, CON3, COCH2CN, COOCOR4, COOCOOR4, COOCONHR4, COOC6H4NO2, COOPh, CH=CH2, COOSi(R4)3, CO-Z-R5, NHCO-Z-R5, N(R4)2 or epoxy; n = 0-12, but not 0 for both X and Y; y = 1-4; Z = NH, NR4, O or S; R4 = alkyl, aryl or aralkyl; R5 = alkyl, aryl, aralkyl, CHR8R9, CHOR8CHOR8-R8, CH2OR9, CHN(R8)2CHOR8-R8, CHOR8CHN(R8)2-R8, CHN(R8)2CHN(R8)2-R8, alpha-, beta- or gamma- cyclodextrin, or corresp. hexakis-, heptakis- and octakis- (2,6-dialkyl)-cyclodextrins; R8 = H, alkyl, aryl, aralkyl, imidazolylmethyl, indolylmethyl, acylamino-propyl, acylaminobutyl, or alpha-, beta- or gamma- cyclodextrylcarbonyl; R9 = H, alkyl-, cycloalkyl-, aralkyl-, aryl- or bicycloalkyl-aminocarbonyl, alkoxy-, aryloxy-, aralkoxy- or cycloalkoxy-carbonyl, alpha-, beta- or gamma-cyclodextrylcarbonyl, alkyl, aryl or aralkyl; m = 2-7; a = 1-20; b = 0-20; a + b = 1-40. USE/ADVANTAGE - Used as the stationary phase for the sepn. of chiral or achiral cpds. by gas or liq. chromatography or by electrophoresis in columns or flat beds, and for the chemical modification of glass and quartz surfaces. The invention provides new siloxane block copolymers with high selectivity for the above applications, enabling the sepn. of optical isomers of (suitably derivatised) amines, alcohols, amino-acids, hydroxy-acids, amino-alcohols, sugars, ketones, organophosphates, cpds. with sulphur in a chiral centre, isomers due to restricted rotation etc.
Patent DE-4212521-A1 (DE)
Title: Cutting or moulding tool - has adjustable and mobile cutting head which swings laterally on its long axis to make oblique cuts
Inventor: SCHMIDLER RICHARD
IPC: B27G5/04
Filed: 1992-04-14
Abstract: The cutting tool (24) relative to the work object has an adjustable head (20) which can swing about one or other cutting edge (26) against its cut line (37). The cutting head together with its motor (29) and drive shaft (28) form a unit, and swings as such about an axis which runs through the cutting edge (26). A pin (31) inserted in a drill hole (32) forms a pivot about which th cutting line turns through an angle (W) to a new position (37'). A stop is provided for different positions to limit the swing movement of the cutting line. USE/ADVANTAGE - An inexpensive, rapid and precise method of cutting scarfing joints in purlins and the like.
Patent DE-4215047-A1 (DE)
Title: System for cutting through metal plate by milling cutter - first through cut is made after initial groove is cut using smaller cutter
Inventor: NALDI WALTER
IPC: B23D45/10
Filed: 1992-05-07
Abstract: A metal plate which is to be cut through by a milling cutter has a groove (25) cut along the line of the subsequent through cut. The groove (25) is cut by a smaller milling cutter (3) which is mounted on a telescopic support (13,15) on a slide (5) which also carries the main milling cutter (4). USE/ADVANTAGE - Cutting through a metal plate. The method used for cutting the initial grooves prevents the formation of cracks in the plate, and is of simpler construction.
Patent DE-4217048-A1 (DE)
Title: Electronic digital circuit for subtraction and addition - has operating cycle modes controlled by circuit based upon pulse generator and logic devices
Inventor: MERKLE PAUL
IPC: G06F7/50
Filed: 1992-05-22
Abstract: An electronic digital circuit provides multiple addition and subtraction operations using a control circuit (30) that generates the required pulses for control of the cycle. The system has a keyboard for entry of data and for selection of modes. The control circuit has a pulse generating circuit (27) that connects with a pulse changeover circuit (36) and a pair of flip-flops (31, 44) together with AND and OR gates. The circuit operates to provide the necessary signals for either addition or subtraction. USE/ADVANTAGE - Simplified operation for addition or subtraction.
Patent DE-4219082-A1 (DE)
Title: Sequential filling of several containers at atmos. pressure - involves maintaining feed of sterile gas during each filling and between such fillings and guiding it into ambient atmos.
Inventor: WEIS WILHELM
IPC: B67C3/26
Filed: 1992-06-11
Abstract: A filling tube (1) is surrounded by a bell with a gap, and each container is inserted into the bell open end, while the filling tube penetrates into the container. After complete filling the container is removed. During the liq. flow a sterile gas is fed to bell closed, top end, spaced from the container aperture. Together with air, displaced from the container, the sterile gas escapes through an annular gap between the bell lower end and the container. The feed of the sterile gas is maintained continuously during each filling and between them. If no container is in the bell, the sterile gas escapes through the gap between the bell and filling tube. USE/ADVANTAGE - Low-cost process for sterile container filling.
Patent DE-4225334-A1 (DE)
Title: Machine head for trimming tree trunks - has chipper blades and axial edge milling tools also with similar chipping tools
IPC: B27L11/00
Filed: 1992-07-31
Abstract: The edge milling tool (17) is concentric axially adjustable in the machine head (5), and is equipped with similar chipper tools (22) to those (6) on the cutter head (5). The cutter head shaft (8) is connected to a drive and is hollow, containing an axial sliding milling shaft (18). In a central recess (13) in the cutter head (5) is a freely rotating support (14) which at one end forms a supporting surface (15) for the processed face of the timber. The edge milling tools (17) can be withdrawn into a recess (16) in the support. ADVANTAGE - Produced wholly or predominantly relatively long shavings.
Patent DE-4228832-A1 (DE)
Inventor: NEUBRAND HORST DR RER NAT
IPC: H01L29/10
Filed: 1992-08-29
Abstract: The invention concerns a field-effect-controlled semiconductor component with at least four zones of alternating opposite conduction types, an emitter region at the anode end, a first and a second base region adjacent to the emitter region, an emitter region at the cathode end and an additional adjacent emitter region, plus an anode contact, a contact with the emitter region at the cathode end and a MOS field-effect transistor control-electrode contact. The cathode-end emitter region and the adjacent emitter region form the source and drain of a MOS field-effect transistor. The part (34, 36) of the cathode-end base region which is adjacent to the emitter region (44) of a main thyristor, or a separate highly p-doped region (38) adjacent to the cathode-end base region, is connected to the cathode contact (72) by an integrated component (D) with a non-linear current/voltage characteristic.
Patent DE-4230615-A1 (DE)
Title: Secure storage of data in EEPROM e.g. in motor vehicle controller - comparing data with check word to ensure that storage cells found to be defective are not used for further operations
Inventor: FREIVOGEL NORBERT DIPL ING
IPC: G11C29/00
Filed: 1992-09-12
Abstract: In an electrically erasable programmable read-only memory associated with a CPU, random-access memory and EPROM, the first ten storage addresses (FP1-FP10) are assigned to reception of error information, the next five addresses (CPA-CPE) are used for check sums, and the final address (DZP) houses a defect pointer. After a storage operation, the data and a check data word are compared and if any cell is defective a fresh first word is formed and inserted. USE/ADVANTAGE - In microprocessors of motor vehicle control equipment. Guarantees detection of defective cells in E2PROM, and practically eliminates loss of data.
Patent DE-4231137-A1 (DE)
Title: Safety computer for motor cars - contains various computer modules performing safety functions, e.g. monitoring and indicating distance to preceding vehicle
Inventor: LUENIG HERMANN K DIPL ING
IPC: B60K31/02
Filed: 1992-09-17
Abstract: The computer contains computer modules, individually or as a computer unit, an able to be combined with a car radio and can be installed by the vehicle owner or manufacturer. It contains a functional module for measuring the distance of the preceding vehicle with a display and an automatic speed control and/or braking in the event of danger. Another module measures the distance of the following vehicle and indicates insufficient braking distance. Another module records the current speed limit and displays it and optionally controls the speed accordingly. There is a position module, an automatic driving module and a driving time monitoring and warning module. USE/ADVANTAGE  - For use in a motor vehicle.  The safety computer is designed to reduce the dangers associated with driving by a combination of monitoring, indication and automatic control.